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21-09-2020
Mathematics

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∠ABC and ∠DBC are complementary angles. If m∠ABC=6x+13 and m∠DBC=4x−3 what is the value of x?

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Mathhater6 Mathhater6

22-09-2020

Answer:

x=8

Step-by-step explanation:

Complementary angles are equal to 90 degrees.

angle ABC + angle DBC = 90

6x+13+4x-3=90

Combine like terms

6x+4x+13-3=90

10x+10=90

get x alone by subtracting 10 on both sides

10x=80

divide 10 on both sides

x=8

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